Siphon water waste preventer



(No Model.)

M. SY ER. SIPHON WATER WASTE PREVENTER.

.Patented Jan 11, .1887.

Flmin "re s. Piwwmw m. Washinglvn, D c

NITED STATES Arena FFICE.

SI PHON WATER-WASTE PREVENTERF SPECIFICATION forming part of Letters Patent No. 355,800, dated January 11, 1887. Application filed September 9, 1886. Serial N0. 213,150. (No model.) Patentedin England'January 14, 1885, No. 505.

To all whom it may concern:

Be it known that I, MILTON SYER, a sub ject of the Queen of Great Britain, of -Peck ham, in the county of Surrey, England, have invented certain new and useful Improvements in Siphon IVaterl/Vaste Preventers, (for which I have a patent in England, No. 505, January 14, 1885;) and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to improvements in siphon water-waste preventers for the flushing of closets, urinals, and other purposes, and it is designed to effect the same in an effectual and simple manner, and with a minimum of operative movement.

In carrying my invention into effect I combine a siphon-tube with a cistern of any desired capacity. Y The siphon is trapped, so as to prevent the escape of air down the siphontube. This siphon-tube is covered by a cap, and in this cap I fix an air-valve or air-pump. Now, the water filling the cistern compresses the air under the siphon-cap, and thus keeps the water from flowing down the siphon-tube. I release the compressed air and the water rises and flows down the siphon-tube, the siphon being started, the whole of the water in the cistern is withdrawn. I also fit a selfclosing valve to the siphon-cap, closing the aperture through which the compressed air escapes, thus preventing the return of the air.

I From the foregoing it will be understood that the cistern being empty,and the siphon trapped with water, which is retained in the trap, as the water fills up the cistern it compresses the air under the siphon, thus holding back the water from flowing down the siphon-tube. The cistern being supplied by means of a ball-valve, the supply is shut off when the water has risen to the required height. on the siphon-cap by means of a lever attached to the cistern, and at the same time I may secure the ball-valve, so that no water can enter the cistern until the lever is released which shuts the air-valve. I sometimes fix this airvalve onto an air-pipe of any required length, so that the air-valve may be conveniently placed in the seat of the water-closet, on the pressing or pulling of which the air under the siphon-cap is released and the water flows.

I now open the valve The siphon-tube and trapping'chamber I make in one or more pieces most suitable to complete, showing alternative device for re- 6o leasing the compressed air. View of the same. 7

Similar letters refer to-similar parts in both the figures.

A is a siphontube, leading down to the closet-pan, urinal, or other place wherea flush may be desired. Surrounding this is the annular wall B, and fitting over this, so as to form a water-trap and a compressed-air chamber, is the cap 0. This cap has its outer edges resting upon supports or legs D. The-air-valve is shown at E, and is conveniently in the form of a float-valve whose travel is kept vertical by the guide (fitted with astop) and bridgeF.

G is a weighted lever, resting upon the floatvalve E and normally retaining the same in place upon its seating.

H is a pull operated from any convenient point, and which raises thelever when required.

K is the usual ball-cock.

As shown in the drawings, the flushing-cistern is full of water, a cushion of air having been compressed in the chamber formed be tween 0 and B by the water-pressure, and the spaces between B, O, and A forming a watertrap. Upon the pull H being operated, the weightedlever G is raised and the float valve E rises from its seating, the compressed air being thus suddenly released andthe-siphonage brought into play by the water-head in the direction shown by arrows. As the water sinks, the valve E again falls onto its seating, preventing any break of the siphonage until the cistern is emptied. The ball-valve, being brought into play immediately, begins to refill the cistern and produce anew the conditions required for a flush.

My device, it will thus be seen, can be used as a continuous intermittent flush, or the ballmay be secured until the cistern is emptied, and then allowed to drop and refill the same.

L shows an air-pipe leading tothe valve M,

Fig. 2 is a plan normally held closed by aspiral spring, which l having legs D, and a valve, E, operated by may be released by a push, N, thus allowing the weighted lever G, all placed Within the f5 the compressed air to escape and the siphonage to be established. Where this is employed the valve E would not exist, the only aperture into the cap being at 0.

Having now particularly described and ascertained the nature of my invention and in what manner the same is to be performed, I declare that What I claim is- A waste-water siphon consisting of the pipe A, surrounded by the annular wall B, cap 0,

provided with a depending tube, a cylinder 1 tank, and arranged, combined, and operated substantially as and for the purpose set forth. In testimony that I claim the foregoing I have hereunto set my hand this 18th day of August, 1886.

MILTON SYEB. \Vitnesses:

WILLIAMRD. CLARK,

3 Da'nby St. Peckham, London. ERNEST LIDDELL,

17 Graccchurch St, London, E. C. 

